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CrashStats

LL20 road accidents: crash map and statistics

Police recorded 1,348 road traffic collisions in the LL20 postcode district, Denbighshire, from 1979 to 2025, and 2,076 people were killed or injured in them. Of those collisions, 47 were fatal and 300 were serious.

In 2025 police recorded 11 collisions, down from 12 in 2024.

Collisions since 1979
1,348
2,032nd of 2,813 postcode districts, highest first
Casualties
2,076
1.54 per collision
Fatal collisions
47
48 people killed
Serious collisions
300
387 seriously injured
Collisions in 2025
11
12 in 2024
Casualties in 2025
15
16 in 2024

Road collision statistics for LL20

Collisions by severity, 1979 to 2025

  • Fatal473.5%
  • Serious30022%
  • Slight1,00174%

What the data shows

  • LL20 had 134 collisions from 2016 to 2025, 31% fewer than the 195 from 2006 to 2015.
  • 26% of collisions in LL20 were fatal or serious, against 20% across Great Britain.
  • 232 children under 16 were killed or injured in LL20, 11% of the casualties whose age was recorded.
  • The road surface was wet, icy, snowy or flooded in 39% of collisions in LL20.

Where LL20 ranks among 2,813 postcode districts

Most collisions
2,032nd
Most casualties
1,975th
Most fatal collisions
1,276th
Most serious collisions
2,008th

Collisions by day of the week

  • Monday163 (12%)
  • Tuesday151 (11%)
  • Wednesday158 (12%)
  • Thursday170 (13%)
  • Friday192 (14%)
  • Saturday240 (18%)
  • Sunday274 (20%)

Light conditions

  • Daylight1,015 (75%)
  • Dark, no street lighting209 (16%)
  • Dark, street lights lit106 (7.9%)
  • Dark, lighting unknown17 (1.3%)
  • Dark, street lights unlit1 (0.1%)

Type of road

  • Single carriageway1,309 (97%)
  • Dual carriageway15 (1.1%)
  • One way street or slip road7 (0.5%)
  • Roundabout2 (0.1%)
  • Not recorded15 (1.1%)

Speed limit at the scene

  • 20 mph4 (0.3%)
  • 30 mph462 (34%)
  • 40 mph40 (3%)
  • 50 mph17 (1.3%)
  • 60 mph777 (58%)
  • 70 mph48 (3.6%)

Weather at the time

  • Fine, no high winds1,043 (77%)
  • Raining, no high winds178 (13%)
  • Raining with high winds22 (1.6%)
  • Fine with high winds16 (1.2%)
  • Snowing, no high winds11 (0.8%)
  • Fog or mist10 (0.7%)
  • Snowing with high winds3 (0.2%)
  • Other56 (4.2%)
  • Not recorded9 (0.7%)

Who was hurt

  • Car occupant1,371 (66%)
  • Motorcyclist273 (13%)
  • Pedestrian209 (10%)
  • Cyclist82 (3.9%)
  • Goods vehicle occupant (over 3.5 tonnes)34 (1.6%)
  • Van occupant32 (1.5%)
  • Minibus occupant29 (1.4%)
  • Bus or coach occupant23 (1.1%)
  • Other vehicle occupant12 (0.6%)
  • Taxi or private hire car occupant7 (0.3%)
  • Other4 (0.2%)

Source: Department for Transport, STATS19 road safety data

LL20 road accidents by year

Collisions and casualties in LL20, 1979 to 2025

Collisions in LL20 peaked at 55 in 1988; 2025 had 11.

  • Collisions
  • Collisions in 2025: 11
  • Casualties

Source: Department for Transport, STATS19 road safety data

View as a table
YearCollisionsCasualties
20251115
20241216
20232125
20221017
20211721
20201215
20191421
20181114
20171213
20161419
20151519
20141722
2013910
20121521
20111725
20102033
20092533
20082545
20072435
20062837
20051618
20043662
20034277
20023044
20013548
20003462
19992748
19983355
19973965
19962844
19954276
19943648
19933059
19923867
19914468
19903460
19894675
19885582
19875069
19863550
19853854
19845286
19834364
19824973
19813867
19803552
19793447

Map of recent crashes in LL20

Map of the 24 most recent crashes in LL20

Use the arrow keys to move the map and the plus and minus keys to zoom.

  • 24 crashes
  • Fatal
  • Serious
  • Slight

Recent road crashes in LL20

The 24 most recent collisions in LL20 happened between 16 December 2023 and 21 December 2025.

Severity

Crashes by road in LL20

The A5 has the most collisions in LL20, 487 of 1,348 (36%), followed by the A539 (287).

Collisions in LL20 on each road, 1979 to 2025
RankRoadCollisionsCasualtiesFatalSerious
1stA548780515104
2ndA5392874631065
3rdA5421992931256
4thB450076110719
5thB45795701

Council areas covering LL20

Collisions in LL20 were recorded in 2 council areas. Denbighshire has 1,046 of 1,348 (78%).

Collisions in LL20 by council area, 1979 to 2025
RankCouncil areaCollisionsCasualtiesFatalSerious
1stDenbighshire1,0461,63938226
2ndWrexham302437974

Towns in LL20

Collisions in LL20 were recorded in 2 towns, led by Llangollen (313) and Acrefair and Cefn-mawr (49).